Zack writes
Tempo SC Ultra cannot be sprayed into sink drains. Instead we would recommend to use the Drain Fly Kit and you could also use Gentrol Aerosol to help disrupt the life cycle as well. Please take a few minutes to read over the article on How to Get Rid of Drain Flies: https://www.domyown.com/how-to-get-rid-of-drain-flies-a-517.html.
Answer last updated on: 07/30/2021